{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{3}{c}}
\hline\hline
                    &\multicolumn{3}{c}{Volunteer}                                    \\\cmidrule(lr){2-4}
\hline
AAA grants $\times$ farm owner&       1.759\sym{***}&       1.346\sym{***}&       1.043\sym{***}\\
                    &     [0.217]         &     [0.215]         &     [0.229]         \\
Farm owner          &      -0.005\sym{***}&      -0.007\sym{***}&      -0.005\sym{***}\\
                    &     [0.001]         &     [0.001]         &     [0.001]         \\
Age FEs             &         Yes         &         Yes         &         Yes         \\
Individual controls &          No         &         Yes         &         Yes         \\
Birthplace FEs      &          No         &         Yes         &         Yes         \\
\hline
\(R^{2}\)           &       0.013         &       0.016         &       0.017         \\
Fixed effects       &      County         &      County         &      County         \\
Sample:             &        Farm         &        Farm         &   Farm, CEM         \\
Mean dependent variable&       0.013         &       0.013         &       0.013         \\
Observations        &     2,443,042         &     2,443,042         &     1,991,084         \\
\hline\hline
\end{tabular}
}
